Man accused of killing parents, sister, pleads not guilty

DES MOINES, Iowa (AP) -- An Iowa man accused of killing his mother, father and sister has pleaded not guilty. Court records say 21-year-old Chase Nicholson filed written pleas Tuesday in Polk County to charges of first-degree murder. The records don't show that a trial starting has been set. Authorities say Nicholson used a shotgun that was recovered at the family home in Bondurant, where the bodies were found April 6. The three killed were identified as 58-year-old Mark Nicholson; 56-year-old Charla Nicholson and 24-year-old Tawni Nicholson. Chase Nicholson surrendered April 7 in Neosho, Missouri. Police there have said Nicholson told an officer that he had killed three people the night before.